12.7 × 4.76 × 2 mm inserts
Indexable turning inserts whose three key dimensions coincide: inscribed circle d1 = 12.7 mm (0.5 in), thickness s = 4.76 mm (0.187 in), nose radius rε = 2 mm (0.079 in). This is the dimension set behind an “equivalent insert” search — read the interchange note before substituting.
All 2 designations here use the same shape (S). Confirm clearance, tolerance and holder on the model page; brand chipbreaker suffixes and grades change performance, not pocket geometry.
Models at this dimension set
| Model | Shape | Clearance | Tolerance / fixing | Brand offers | |
|---|---|---|---|---|---|
| SNMA120420 | S 90° square | N · 0° | MA | 1 | Specs → |
| SNMG120420 | S 90° square | N · 0° | MG | 1 | Specs → |
Every value on this page is derived deterministically from the ISO 1832 designation (positions 1–7). Brand ordering codes, chipbreakers and grades with cited sources appear on each linked model page.